lowering
adjective literary uk/ˈlaʊ.ə.rɪŋ/ us/ˈlaʊ.ɚ.ɪŋ/
（天空）乌 云密布的，阴沉的
used to describe the sky when it is very dark and it looks as if it is about to rain
The street party took place under lowering skies. 花街联欢在阴沉的天气下开始了。
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